I also met the similar issue, vm with dpdk port just receives packets but cannot transmit packets out when restart openvswitch unless reboot the vm. And we found kernel version <= 3.10.0-327.el7.x86_64 does not have the problem, but the root causes haven't been found yet.
I also met the similar issue, vm with dpdk port just receives packets but cannot transmit packets out when restart openvswitch unless reboot the vm. And we found kernel version <= 3.10.0- 327.el7. x86_64 does not have the problem, but the root causes haven't been found yet.